[llvm] r281894 - [Thumb] Set correct initial mapping symbol for big-endian thumb

[Oliver Stannard via llvm-commits]

Author: olista01
Date: Mon Sep 19 04:21:45 2016
New Revision: 281894

URL: http://llvm.org/viewvc/llvm-project?rev=281894&view=rev
Log:
[Thumb] Set correct initial mapping symbol for big-endian thumb

The initial mapping symbol state is set from the triple, but we only checked
for the little-endian thumb triple, so could end up with an ARM mapping symbol
for big-endian thumb.

Differential Revision: https://reviews.llvm.org/D24553


Added:
    llvm/trunk/test/MC/ARM/mapping-initial.s
Modified:
    llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp

Modified: llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp?rev=281894&r1=281893&r2=281894&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp (original)
+++ llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp Mon Sep 19 04:21:45 2016
@@ -204,7 +204,8 @@ static MCStreamer *createELFStreamer(con
                                      MCAsmBackend &MAB, raw_pwrite_stream &OS,
                                      MCCodeEmitter *Emitter, bool RelaxAll) {
   return createARMELFStreamer(Ctx, MAB, OS, Emitter, false,
-                              T.getArch() == Triple::thumb);
+                              (T.getArch() == Triple::thumb ||
+                               T.getArch() == Triple::thumbeb));
 }
 
 static MCStreamer *createARMMachOStreamer(MCContext &Ctx, MCAsmBackend &MAB,

Added: llvm/trunk/test/MC/ARM/mapping-initial.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/ARM/mapping-initial.s?rev=281894&view=auto
==============================================================================
--- llvm/trunk/test/MC/ARM/mapping-initial.s (added)
+++ llvm/trunk/test/MC/ARM/mapping-initial.s Mon Sep 19 04:21:45 2016
@@ -0,0 +1,9 @@
+@ RUN: llvm-mc -triple=armv7a-none-eabi     -filetype=obj < %s | llvm-objdump -t - | FileCheck %s --check-prefix=ARM
+@ RUN: llvm-mc -triple=armebv7a-none-eabi   -filetype=obj < %s | llvm-objdump -t - | FileCheck %s --check-prefix=ARM
+@ RUN: llvm-mc -triple=thumbv7a-none-eabi   -filetype=obj < %s | llvm-objdump -t - | FileCheck %s --check-prefix=THUMB
+@ RUN: llvm-mc -triple=thumbebv7a-none-eabi -filetype=obj < %s | llvm-objdump -t - | FileCheck %s --check-prefix=THUMB
+
+  add r0, r0, r0
+
+@ ARM:      00000000         .text  00000000 $a
+@ THUMB:    00000000         .text  00000000 $t